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Finding the Fourth Proportional to 83,447.26, 124,963.30 and 58,369.89

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Solution

The fourth proportional to 83,447.26, 124,963.30 and 58,369.89 is: 87,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,447.26 : 124,963.30 = 58,369.89 : x
  2. Step 2: Convert to fraction form
    83,447.26/124,963.30 = 58,369.89/x
  3. Step 3: Cross multiply
    83,447.26x = 124,963.30 × 58,369.89
  4. Step 4: Simplify right side
    83,447.26x = 7,294,093,585.36
  5. Step 5: Solve for x
    x = 7,294,093,585.36/83,447.26
  6. Step 6: Final answer
    x = 87,409.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.